Package org.apache.geronimo.aries.builder

Source Code of org.apache.geronimo.aries.builder.ApplicationConfigBuilder

/**
*  Licensed to the Apache Software Foundation (ASF) under one or more
*  contributor license agreements.  See the NOTICE file distributed with
*  this work for additional information regarding copyright ownership.
*  The ASF licenses this file to You under the Apache License, Version 2.0
*  (the "License"); you may not use this file except in compliance with
*  the License.  You may obtain a copy of the License at
*
*     http://www.apache.org/licenses/LICENSE-2.0
*
*  Unless required by applicable law or agreed to in writing, software
*  distributed under the License is distributed on an "AS IS" BASIS,
*  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
*  See the License for the specific language governing permissions and
*  limitations under the License.
*/
package org.apache.geronimo.aries.builder;

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.util.Collection;
import java.util.jar.JarFile;
import java.util.jar.Manifest;

import org.apache.aries.application.ApplicationMetadata;
import org.apache.aries.application.ApplicationMetadataFactory;
import org.apache.aries.application.filesystem.IDirectory;
import org.apache.aries.application.filesystem.IFile;
import org.apache.aries.application.management.AriesApplication;
import org.apache.aries.application.management.AriesApplicationManager;
import org.apache.aries.application.utils.AppConstants;
import org.apache.aries.application.utils.filesystem.FileSystem;
import org.apache.aries.application.utils.manifest.ManifestDefaultsInjector;
import org.apache.aries.application.utils.manifest.ManifestProcessor;
import org.apache.geronimo.common.DeploymentException;
import org.apache.geronimo.deployment.ConfigurationBuilder;
import org.apache.geronimo.deployment.DeploymentContext;
import org.apache.geronimo.deployment.ModuleIDBuilder;
import org.apache.geronimo.gbean.GBeanLifecycle;
import org.apache.geronimo.gbean.annotation.GBean;
import org.apache.geronimo.gbean.annotation.ParamReference;
import org.apache.geronimo.gbean.annotation.ParamSpecial;
import org.apache.geronimo.gbean.annotation.SpecialAttributeType;
import org.apache.geronimo.kernel.GBeanNotFoundException;
import org.apache.geronimo.kernel.Kernel;
import org.apache.geronimo.kernel.config.ConfigurationStore;
import org.apache.geronimo.kernel.repository.Artifact;
import org.apache.geronimo.kernel.repository.ArtifactResolver;
import org.osgi.framework.BundleContext;
import org.osgi.framework.ServiceReference;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.apache.geronimo.aries.ApplicationInstaller;
/**
* @version $Rev:385232 $ $Date: 2011-12-14 02:00:08 +0800 (Wed, 14 Dec 2011) $
*/
@GBean(j2eeType = "ConfigBuilder")
public class ApplicationConfigBuilder implements ConfigurationBuilder, GBeanLifecycle {

    private static final Logger LOG = LoggerFactory.getLogger(ApplicationConfigBuilder.class);

    private BundleContext bundleContext;
    private ApplicationInstaller installer;

    public ApplicationConfigBuilder(@ParamReference(name="Installer") ApplicationInstaller installer,
                                    @ParamSpecial(type = SpecialAttributeType.kernel) Kernel kernel,
                                    @ParamSpecial(type = SpecialAttributeType.bundleContext) BundleContext bundleContext)
        throws GBeanNotFoundException {
        this.installer = installer;
        this.bundleContext = bundleContext;
    }

    public void doStart() throws Exception {
    }

    public void doStop() {
    }

    public void doFail() {
        doStop();
    }

    private AriesApplicationManager getAriesApplicationManager() {
        ServiceReference ref =
            bundleContext.getServiceReference(AriesApplicationManager.class.getName());
        if (ref != null) {
            return (AriesApplicationManager) bundleContext.getService(ref);
        } else {
            return null;
        }
    }

    private ApplicationMetadataFactory getApplicationMetadataFactory() {
        ServiceReference ref =
            bundleContext.getServiceReference(ApplicationMetadataFactory.class.getName());
        if (ref != null) {
            return (ApplicationMetadataFactory) bundleContext.getService(ref);
        } else {
            return null;
        }
    }

    public Object getDeploymentPlan(File planFile,
                                    JarFile jarFile,
                                    ModuleIDBuilder idBuilder)
        throws DeploymentException {
        if (jarFile == null) {
            return null;
        }

        if (jarFile.getName().endsWith(".eba")) {
            return new Object();
        }

        return null;
    }

    public Artifact getConfigurationID(Object plan,
                                       JarFile jarFile,
                                       ModuleIDBuilder idBuilder)
        throws IOException, DeploymentException {
        ApplicationMetadataFactory factory = getApplicationMetadataFactory();
        IDirectory ebaFile = FileSystem.getFSRoot(new File(jarFile.getName()));
        IFile applicationManifestFile = ebaFile.getFile(AppConstants.APPLICATION_MF);
        Manifest applicationManifest;
        if (applicationManifestFile != null) {
            InputStream in = applicationManifestFile.open();
            try {
                applicationManifest = ManifestProcessor.parseManifest(in);
            } finally {
                try { in.close(); } catch (IOException ignore) {}
            }
        } else {
            applicationManifest = new Manifest();
        }
        ManifestDefaultsInjector.updateManifest(applicationManifest, ebaFile.getName(), ebaFile);
        ApplicationMetadata metadata = factory.createApplicationMetadata(applicationManifest);
        return ApplicationInstaller.getConfigId(metadata);
    }

    private static boolean getResolveOnDeploy() {
        String property = System.getProperty("org.apache.geronimo.aries.resolveApplicationOnDeploy", "true");
        return Boolean.parseBoolean(property);
    }

    public DeploymentContext buildConfiguration(boolean inPlaceDeployment,
                                                Artifact configId,
                                                Object plan,
                                                JarFile jarFile,
                                                Collection<ConfigurationStore> configurationStores,
                                                ArtifactResolver artifactResolver,
                                                ConfigurationStore targetConfigurationStore)
        throws IOException, DeploymentException {

        AriesApplicationManager appManager = getAriesApplicationManager();

        AriesApplication app = null;
        try {
            app = appManager.createApplication(FileSystem.getFSRoot(new File(jarFile.getName())));
        } catch (Exception e) {
            throw new DeploymentException("Error creating Aries Application", e);
        }

        if (!app.isResolved() && getResolveOnDeploy()) {
            try {
                app = appManager.resolve(app);
            } catch (Exception e) {
                throw new DeploymentException("Error resolving Aries Application", e);
            }
        }

        DeploymentContext context = installer.startInstall(app, targetConfigurationStore);

        return context;
    }

}
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